What is the current average value of properties in HA9?

The current average value in HA9 in December 2016 is £479,353.
This has increased 3.32% from September 2016.
Terraced properties sold for a current average value of £487,849
and semi-detached properties valued £583,819.
In the past year property prices in HA9 have increased 6.70%.
This is according to the current Zoopla estimates.